FCP-101: Remove cs(4).

Relnotes:	yes
FCP:		https://github.com/freebsd/fcp/blob/master/fcp-0101.md
Reviewed by:	jhb, imp
Differential Revision:	https://reviews.freebsd.org/D20230

13 files changed, 1 insertions, 2323 deletions

diff --git a/ObsoleteFiles.inc b/ObsoleteFiles.inc
index d4f3cbef408f..646a7453283b 100644
--- a/ObsoleteFiles.inc
+++ b/ObsoleteFiles.inc
@@ -40,6 +40,7 @@
 
 # 20190518: Remove obsolete 10 and 10/100 ethernet drivers.
 OLD_FILES+=usr/share/man/man4/bm.4
+OLD_FILES+=usr/share/man/man4/cs.4
 # 20190513: libcap_sysctl interface change
 OLD_FILES+=lib/casper/libcap_sysctl.1
 # 20190509: tests/sys/opencrypto requires the net/py-dpkt package.
diff --git a/share/man/man4/man4.i386/Makefile b/share/man/man4/man4.i386/Makefile
index d956581d4278..605e204e7389 100644
--- a/share/man/man4/man4.i386/Makefile
+++ b/share/man/man4/man4.i386/Makefile
@@ -6,7 +6,6 @@ MAN=	apm.4 \
 	ce.4 \
 	cp.4 \
 	CPU_ELAN.4 \
-	cs.4 \
 	ctau.4 \
 	cx.4 \
 	ep.4 \
diff --git a/share/man/man4/man4.i386/cs.4 b/share/man/man4/man4.i386/cs.4
deleted file mode 100644
index 49dc438ba937..000000000000
--- a/share/man/man4/man4.i386/cs.4
+++ /dev/null
@@ -1,160 +0,0 @@
-.\"
-.\" Copyright (c) 1998 Michael Smith
-.\" All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\" $FreeBSD$
-.\"
-.Dd October 24 2018
-.Dt CS 4 i386
-.Os
-.Sh NAME
-.Nm cs
-.Nd "Ethernet device driver"
-.Sh SYNOPSIS
-To compile this driver into the kernel,
-place the following line in your
-kernel configuration file:
-.Bd -ragged -offset indent
-.Cd "device cs"
-.Ed
-.Pp
-Alternatively, to load the driver as a
-module at boot time, place the following line in
-.Xr loader.conf 5 :
-.Bd -literal -offset indent
-if_cs_load="YES"
-.Ed
-.Pp
-In
-.Pa /boot/device.hints :
-.Cd hint.cs.0.at="isa"
-.Cd hint.cs.0.port="0x300"
-.Cd hint.cs.0.irq="10"
-.Cd hint.cs.0.maddr="0xd000"
-.Sh DEPRECATION NOTICE
-The
-.Nm
-driver is not present in
-.Fx 13.0
-and later.
-See https://github.com/freebsd/fcp/blob/master/fcp-0101.md for more
-information.
-.Sh DESCRIPTION
-The
-.Nm
-driver provides support for ISA Ethernet adapters based on the
-.Tn Crystal Semiconductor CS8900
-and
-.Tn CS8920
-NICs.
-These devices are used on the
-.Tn IBM EtherJet ISA
-adapters and in many embedded applications where the high integration, small
-size and low cost of the CS89x0 family compensate for their drawbacks.
-.Pp
-The
-.Nm
-driver will obtain configuration parameters either from
-.Pa /boot/device.hints
-or from the card.
-At least the I/O port number must be specified.
-Other parameters specified in
-.Pa /boot/device.hints
-will be used if present;
-the card may be soft-configured so these may be any valid
-value.
-Adapters based on the CS8920 normally offer PnP configuration and the driver
-will detect the
-.Tn IBM EtherJet
-and the
-.Tn CSC6040
-adapters automatically.
-.Pp
-Note that the CS8900 is limited to 4 IRQ values; these are normally implemented
-as 5, 10, 11 and 12.
-The CS8920 has no such limitation.
-.Pp
-Memory-mapped and DMA operation are not supported at this time.
-.Pp
-In addition to the ISA devices, the PC Card devices based on the CS889x0
-family are also supported.
-The IBM EtherJet PCMCIA Card is the only known device based on this
-chip.
-The PC Card support does not need the above specific ISA hints to work.
-The PC Card support may not work for 10base2 (thinnet) connections and may
-bogusly claim to support 10base5 (there are no known cards that have an
-AUI necessary for 10base5 support on their dongles).
-.Sh DIAGNOSTICS
-.Bl -diag
-.It "cs%d: full/half duplex negotiation timeout"
-The attempt to negotiate duplex settings with the hub timed out.
-This may
-indicate a cabling problem or a faulty or incompatible hub.
-.It "cs%d: failed to enable <media>"
-The CS89x0 failed to select the nominated media, either because it is not
-present or not operating correctly.
-.It "cs%d: No EEPROM, assuming defaults"
-The CS89x0 does not have an EEPROM, or the EEPROM is hopelessly damaged.
-Operation
-will only be successful if the configuration entry lists suitable values for
-the adapter.
-.It "cs%d: Invalid irq"
-The IRQ specified in the configuration entry is not valid for the adapter.
-.It "cs%d: Could not allocate memory for NIC"
-There is a critical memory shortage.
-The adapter will not function.
-.It "cs%d: Adapter has no media"
-The adapter is not configured for a specific media type.
-The media type will have
-to be manually set.
-.It "This is a %s, but LDN %d is disabled"
-The PnP probe code found a recognised adapter, but the adapter is disabled.
-.It "failed to read pnp parms"
-A PnP adapter was found, but configuration parameters for it could not be read.
-.It "failed to pnp card parameters"
-The parameters obtained via PnP were not accepted by the driver.
-The adapter
-may not function.
-.El
-.Sh SEE ALSO
-.Xr arp 4 ,
-.Xr netintro 4 ,
-.Xr ng_ether 4 ,
-.Xr ifconfig 8
-.Sh AUTHORS
-.An -nosplit
-The
-.Nm
-device driver was written by
-.An Maxim Bolotin
-and
-.An Oleg Sharoiko .
-This manpage was written by
-.An Michael Smith .
-.Sh CAVEATS
-The CS89x0 family of adapters have a very small RAM buffer (4K).
-This may
-cause problems with extremely high network loads or bursty network traffic.
-In particular, NFS operations should be limited to 1k read/write transactions
-in order to avoid overruns.
diff --git a/sys/conf/files b/sys/conf/files
index 858983475bdb..2717c9a370f7 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -1358,9 +1358,6 @@ dev/ciss/ciss.c			optional ciss
 dev/cmx/cmx.c			optional cmx
 dev/cmx/cmx_pccard.c		optional cmx pccard
 dev/cpufreq/ichss.c		optional cpufreq pci
-dev/cs/if_cs.c			optional cs
-dev/cs/if_cs_isa.c		optional cs isa
-dev/cs/if_cs_pccard.c		optional cs pccard
 dev/cxgb/cxgb_main.c		optional cxgb pci \
 	compile-with "${NORMAL_C} -I$S/dev/cxgb"
 dev/cxgb/cxgb_sge.c		optional cxgb pci \
diff --git a/sys/dev/cs/if_cs.c b/sys/dev/cs/if_cs.c
deleted file mode 100644
index 79857f5b9077..000000000000
--- a/sys/dev/cs/if_cs.c
+++ /dev/null
@@ -1,1229 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
- *
- * Copyright (c) 1997,1998 Maxim Bolotin and Oleg Sharoiko.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice unmodified, this list of conditions, and the following
- *    disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/*
- *
- * Device driver for Crystal Semiconductor CS8920 based ethernet
- *   adapters. By Maxim Bolotin and Oleg Sharoiko, 27-April-1997
- */
-
-/*
-#define	 CS_DEBUG 
- */
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/malloc.h>
-#include <sys/mbuf.h>
-#include <sys/socket.h>
-#include <sys/sockio.h>
-#include <sys/kernel.h>
-#include <sys/sysctl.h>
-#include <sys/syslog.h>
-
-#include <sys/module.h>
-#include <sys/bus.h>
-#include <machine/bus.h>
-#include <sys/rman.h>
-#include <machine/resource.h>
-
-#include <net/if.h>
-#include <net/if_var.h>
-#include <net/if_arp.h>
-#include <net/if_dl.h>
-#include <net/if_media.h>
-#include <net/if_types.h>
-#include <net/ethernet.h>
-#include <net/bpf.h>
-
-#include <dev/cs/if_csvar.h>
-#include <dev/cs/if_csreg.h>
-
-#ifdef  CS_USE_64K_DMA
-#define CS_DMA_BUFFER_SIZE 65536
-#else
-#define CS_DMA_BUFFER_SIZE 16384
-#endif
-
-static void	cs_init(void *);
-static void	cs_init_locked(struct cs_softc *);
-static int	cs_ioctl(struct ifnet *, u_long, caddr_t);
-static void	cs_start(struct ifnet *);
-static void	cs_start_locked(struct ifnet *);
-static void	cs_stop(struct cs_softc *);
-static void	cs_reset(struct cs_softc *);
-static void	cs_watchdog(void *);
-
-static int	cs_mediachange(struct ifnet *);
-static void	cs_mediastatus(struct ifnet *, struct ifmediareq *);
-static int      cs_mediaset(struct cs_softc *, int);
-
-static void	cs_write_mbufs(struct cs_softc*, struct mbuf*);
-static void	cs_xmit_buf(struct cs_softc*);
-static int	cs_get_packet(struct cs_softc*);
-static void	cs_setmode(struct cs_softc*);
-
-static int	get_eeprom_data(struct cs_softc *sc, int, int, uint16_t *);
-static int	get_eeprom_cksum(int, int, uint16_t *);
-static int	wait_eeprom_ready( struct cs_softc *);
-static void	control_dc_dc( struct cs_softc *, int );
-static int	enable_tp(struct cs_softc *);
-static int	enable_aui(struct cs_softc *);
-static int	enable_bnc(struct cs_softc *);
-static int      cs_duplex_auto(struct cs_softc *);
-
-devclass_t cs_devclass;
-driver_intr_t	csintr;
-
-/* sysctl vars */
-static SYSCTL_NODE(_hw, OID_AUTO, cs, CTLFLAG_RD, 0, "cs device parameters");
-
-int	cs_ignore_cksum_failure = 0;
-SYSCTL_INT(_hw_cs, OID_AUTO, ignore_checksum_failure, CTLFLAG_RWTUN,
-    &cs_ignore_cksum_failure, 0,
-  "ignore checksum errors in cs card EEPROM");
-
-static int	cs_recv_delay = 570;
-SYSCTL_INT(_hw_cs, OID_AUTO, recv_delay, CTLFLAG_RWTUN, &cs_recv_delay, 570, "");
-
-static int cs8900_eeint2irq[16] = {
-	 10,  11,  12,   5, 255, 255, 255, 255,
-	255, 255, 255, 255, 255, 255, 255, 255 
-};
-
-static int cs8900_irq2eeint[16] = {
-	255, 255, 255, 255, 255,   3, 255, 255,
-	255,   0,   1,   2, 255, 255, 255, 255
-};
-
-static int
-get_eeprom_data(struct cs_softc *sc, int off, int len, uint16_t *buffer)
-{
-	int i;
-
-#ifdef CS_DEBUG
-	device_printf(sc->dev, "EEPROM data from %x for %x:\n", off, len);
-#endif
-	for (i=0; i < len; i++) {
-		if (wait_eeprom_ready(sc) < 0)
-			return (-1);
-		/* Send command to EEPROM to read */
-		cs_writereg(sc, PP_EECMD, (off + i) | EEPROM_READ_CMD);
-		if (wait_eeprom_ready(sc) < 0)
-			return (-1);
-		buffer[i] = cs_readreg(sc, PP_EEData);
-
-#ifdef CS_DEBUG
-		printf("%04x ",buffer[i]);
-#endif
-	}
-
-#ifdef CS_DEBUG
-	printf("\n");
-#endif
-	return (0);
-}
-
-static int
-get_eeprom_cksum(int off, int len, uint16_t *buffer)
-{
-	int i;
-	uint16_t cksum=0;
-
-	for (i = 0; i < len; i++)
-		cksum += buffer[i];
-	cksum &= 0xffff;
-	if (cksum == 0 || cs_ignore_cksum_failure)
-		return (0);
-	return (-1);
-}
-
-static int
-wait_eeprom_ready(struct cs_softc *sc)
-{
-	int i;
-
-	/*
-	 * From the CS8900A datasheet, section 3.5.2:
-	 * "Before issuing any command to the EEPROM, the host must wait
-	 * for the SIBUSY bit (Register 16, SelfST, bit 8) to clear.  After
-	 * each command has been issued, the host must wait again for SIBUSY
-	 * to clear."
-	 *
-	 * Before we issue the command, we should be !busy, so that will
-	 * be fast.  The datasheet suggests that clock out from the part
-	 * per word will be on the order of 25us, which is consistent with
-	 * the 1MHz serial clock and 16bits...  We should never hit 100,
-	 * let alone 15,000 here.  The original code did an unconditional
-	 * 30ms DELAY here.  Bad Kharma.  cs_readreg takes ~2us.
-	 */
-	for (i = 0; i < 15000; i++)	/* 30ms max */
-		if (!(cs_readreg(sc, PP_SelfST) & SI_BUSY))
-			return (0);
-	return (1);
-}
-
-static void
-control_dc_dc(struct cs_softc *sc, int on_not_off)
-{
-	unsigned int self_control = HCB1_ENBL;
-
-	if (((sc->adapter_cnf & A_CNF_DC_DC_POLARITY)!=0) ^ on_not_off)
-		self_control |= HCB1;
-	else
-		self_control &= ~HCB1;
-	cs_writereg(sc, PP_SelfCTL, self_control);
-	DELAY(500000);	/* Bad! */
-}
-
-
-static int
-cs_duplex_auto(struct cs_softc *sc)
-{
-	int i, error=0;
-
-	cs_writereg(sc, PP_AutoNegCTL,
-	    RE_NEG_NOW | ALLOW_FDX | AUTO_NEG_ENABLE);
-	for (i=0; cs_readreg(sc, PP_AutoNegST) & AUTO_NEG_BUSY; i++) {
-		if (i > 4000) {
-			device_printf(sc->dev,
-			    "full/half duplex auto negotiation timeout\n");
-			error = ETIMEDOUT;
-			break;
-		}
-		DELAY(1000);
-	}
-	return (error);
-}
-
-static int
-enable_tp(struct cs_softc *sc)
-{
-
-	cs_writereg(sc, PP_LineCTL, sc->line_ctl & ~AUI_ONLY);
-	control_dc_dc(sc, 0);
-	return (0);
-}
-
-static int
-enable_aui(struct cs_softc *sc)
-{
-
-	cs_writereg(sc, PP_LineCTL,
-	    (sc->line_ctl & ~AUTO_AUI_10BASET) | AUI_ONLY);
-	control_dc_dc(sc, 0);
-	return (0);
-}
-
-static int
-enable_bnc(struct cs_softc *sc)
-{
-
-	cs_writereg(sc, PP_LineCTL,
-	    (sc->line_ctl & ~AUTO_AUI_10BASET) | AUI_ONLY);
-	control_dc_dc(sc, 1);
-	return (0);
-}
-
-int
-cs_cs89x0_probe(device_t dev)
-{
-	int i;
-	int error;
-	rman_res_t irq, junk;
-	struct cs_softc *sc = device_get_softc(dev);
-	unsigned rev_type = 0;
-	uint16_t id;
-	char chip_revision;
-	uint16_t eeprom_buff[CHKSUM_LEN];
-	int chip_type, pp_isaint;
-
-	sc->dev = dev;
-	error = cs_alloc_port(dev, 0, CS_89x0_IO_PORTS);
-	if (error)
-		return (error);
-
-	if ((cs_inw(sc, ADD_PORT) & ADD_MASK) != ADD_SIG) {
-		/* Chip not detected. Let's try to reset it */
-		if (bootverbose)
-			device_printf(dev, "trying to reset the chip.\n");
-		cs_outw(sc, ADD_PORT, PP_SelfCTL);
-		i = cs_inw(sc, DATA_PORT);
-		cs_outw(sc, ADD_PORT, PP_SelfCTL);
-		cs_outw(sc, DATA_PORT, i | POWER_ON_RESET);
-		if ((cs_inw(sc, ADD_PORT) & ADD_MASK) != ADD_SIG)
-			return (ENXIO);
-	}
-
-	for (i = 0; i < 10000; i++) {
-		id = cs_readreg(sc, PP_ChipID);
-		if (id == CHIP_EISA_ID_SIG)
-			break;
-	}
-	if (i == 10000)
-		return (ENXIO);
-
-	rev_type = cs_readreg(sc, PRODUCT_ID_ADD);
-	chip_type = rev_type & ~REVISON_BITS;
-	chip_revision = ((rev_type & REVISON_BITS) >> 8) + 'A';
-
-	sc->chip_type = chip_type;
-
-	if (chip_type == CS8900) {
-		pp_isaint = PP_CS8900_ISAINT;
-		sc->send_cmd = TX_CS8900_AFTER_ALL;
-	} else {
-		pp_isaint = PP_CS8920_ISAINT;
-		sc->send_cmd = TX_CS8920_AFTER_ALL;
-	}
-
-	/*
-	 * Clear some fields so that fail of EEPROM will left them clean
-	 */
-	sc->auto_neg_cnf = 0;
-	sc->adapter_cnf  = 0;
-	sc->isa_config   = 0;
-
-	/*
-	 * If no interrupt specified, use what the board tells us.
-	 */
-	error = bus_get_resource(dev, SYS_RES_IRQ, 0, &irq, &junk);
-
-	/*
-	 * Get data from EEPROM
-	 */
-	if((cs_readreg(sc, PP_SelfST) & EEPROM_PRESENT) == 0) {
-		device_printf(dev, "No EEPROM, assuming defaults.\n");
-	} else if (get_eeprom_data(sc,START_EEPROM_DATA,CHKSUM_LEN, eeprom_buff)<0) {
-		device_printf(dev, "EEPROM read failed, assuming defaults.\n");
-	} else if (get_eeprom_cksum(START_EEPROM_DATA,CHKSUM_LEN, eeprom_buff)<0) {
-		device_printf(dev, "EEPROM cheksum bad, assuming defaults.\n");
-	} else {
-		sc->auto_neg_cnf = eeprom_buff[AUTO_NEG_CNF_OFFSET];
-		sc->adapter_cnf = eeprom_buff[ADAPTER_CNF_OFFSET];
-		sc->isa_config = eeprom_buff[ISA_CNF_OFFSET];
-		for (i=0; i<ETHER_ADDR_LEN/2; i++) {
-			sc->enaddr[i*2] = eeprom_buff[i];
-			sc->enaddr[i*2+1] = eeprom_buff[i] >> 8;
-		}
-		/*
-		 * If no interrupt specified, use what the
-		 * board tells us.
-		 */
-		if (error) {
-			irq = sc->isa_config & INT_NO_MASK;
-			error = 0;
-			if (chip_type == CS8900) {
-				irq = cs8900_eeint2irq[irq];
-			} else {
-				if (irq > CS8920_NO_INTS)
-					irq = 255;
-			}
-			if (irq == 255) {
-				device_printf(dev, "invalid irq in EEPROM.\n");
-				error = EINVAL;
-			}
-			if (!error)
-				bus_set_resource(dev, SYS_RES_IRQ, 0,
-				    irq, 1);
-		}
-	}
-
-	if (!error && !(sc->flags & CS_NO_IRQ)) {
-		if (chip_type == CS8900) {
-			if (irq < 16)
-				irq = cs8900_irq2eeint[irq];
-			else
-				irq = 255;
-		} else {
-			if (irq > CS8920_NO_INTS)
-				irq = 255;
-		}
-		if (irq == 255)
-			error = EINVAL;
-	}
-
-	if (error) {
-	       	device_printf(dev, "Unknown or invalid irq\n");
-		return (error);
-	}
-
-	if (!(sc->flags & CS_NO_IRQ))
-		cs_writereg(sc, pp_isaint, irq);
-
-	if (bootverbose)
-		 device_printf(dev, "CS89%c0%s rev %c media%s%s%s\n",
-			chip_type == CS8900 ? '0' : '2',
-			chip_type == CS8920M ? "M" : "",
-			chip_revision,
-			(sc->adapter_cnf & A_CNF_10B_T) ? " TP"  : "",
-			(sc->adapter_cnf & A_CNF_AUI)   ? " AUI" : "",
-			(sc->adapter_cnf & A_CNF_10B_2) ? " BNC" : "");
-
-	if ((sc->adapter_cnf & A_CNF_EXTND_10B_2) &&
-	    (sc->adapter_cnf & A_CNF_LOW_RX_SQUELCH))
-		sc->line_ctl = LOW_RX_SQUELCH;
-	else
-		sc->line_ctl = 0;
-
-	return (0);
-}
-
-/*
- * Allocate a port resource with the given resource id.
- */
-int
-cs_alloc_port(device_t dev, int rid, int size)
-{
-	struct cs_softc *sc = device_get_softc(dev);
-	struct resource *res;
-
-	res = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT, &rid,
-	    size, RF_ACTIVE);
-	if (res == NULL)
-		return (ENOENT);
-	sc->port_rid = rid;
-	sc->port_res = res;
-	return (0);
-}
-
-/*
- * Allocate an irq resource with the given resource id.
- */
-int
-cs_alloc_irq(device_t dev, int rid)
-{
-	struct cs_softc *sc = device_get_softc(dev);
-	struct resource *res;
-
-	res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
-	if (res == NULL)
-		return (ENOENT);
-	sc->irq_rid = rid;
-	sc->irq_res = res;
-	return (0);
-}
-
-/*
- * Release all resources
- */
-void
-cs_release_resources(device_t dev)
-{
-	struct cs_softc *sc = device_get_softc(dev);
-
-	if (sc->port_res) {
-		bus_release_resource(dev, SYS_RES_IOPORT,
-		    sc->port_rid, sc->port_res);
-		sc->port_res = 0;
-	}
-	if (sc->irq_res) {
-		bus_release_resource(dev, SYS_RES_IRQ,
-		    sc->irq_rid, sc->irq_res);
-		sc->irq_res = 0;
-	}
-}
-
-/*
- * Install the interface into kernel networking data structures
- */
-int
-cs_attach(device_t dev)
-{
-	int error, media=0;
-	struct cs_softc *sc = device_get_softc(dev);
-	struct ifnet *ifp;
-
-	sc->dev = dev;
-	
-	ifp = sc->ifp = if_alloc(IFT_ETHER);
-	if (ifp == NULL) {
-		device_printf(dev, "can not if_alloc()\n");
-		cs_release_resources(dev);
-		return (ENOMEM);
-	}
-
-	mtx_init(&sc->lock, device_get_nameunit(dev), MTX_NETWORK_LOCK,
-	    MTX_DEF);
-	callout_init_mtx(&sc->timer, &sc->lock, 0);
-
-	CS_LOCK(sc);
-	cs_stop(sc);
-	CS_UNLOCK(sc);
-
-	ifp->if_softc=sc;
-	if_initname(ifp, device_get_name(dev), device_get_unit(dev));
-	ifp->if_start=cs_start;
-	ifp->if_ioctl=cs_ioctl;
-	ifp->if_init=cs_init;
-	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
-
-	ifp->if_flags=(IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST);
-
-	/*
-	 * this code still in progress (DMA support)
-	 *
-
-	sc->recv_ring=malloc(CS_DMA_BUFFER_SIZE<<1, M_DEVBUF, M_NOWAIT);
-	if (sc->recv_ring == NULL) {
-		log(LOG_ERR,
-		"%s: Couldn't allocate memory for NIC\n", ifp->if_xname);
-		return(0);
-	}
-	if ((sc->recv_ring-(sc->recv_ring & 0x1FFFF))
-	    < (128*1024-CS_DMA_BUFFER_SIZE))
-	    sc->recv_ring+=16*1024;
-
-	*/
-
-	sc->buffer=malloc(ETHER_MAX_LEN-ETHER_CRC_LEN,M_DEVBUF,M_NOWAIT);
-	if (sc->buffer == NULL) {
-		device_printf(sc->dev, "Couldn't allocate memory for NIC\n");
-		if_free(ifp);
-		mtx_destroy(&sc->lock);
-		cs_release_resources(dev);
-		return(ENOMEM);
-	}
-
-	/*
-	 * Initialize the media structures.
-	 */
-	ifmedia_init(&sc->media, 0, cs_mediachange, cs_mediastatus);
-
-	if (sc->adapter_cnf & A_CNF_10B_T) {
-		ifmedia_add(&sc->media, IFM_ETHER|IFM_10_T, 0, NULL);
-		if (sc->chip_type != CS8900) {
-			ifmedia_add(&sc->media,
-				IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
-			ifmedia_add(&sc->media,
-				IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL);
-		}
-	} 
-
-	if (sc->adapter_cnf & A_CNF_10B_2)
-		ifmedia_add(&sc->media, IFM_ETHER|IFM_10_2, 0, NULL);
-
-	if (sc->adapter_cnf & A_CNF_AUI)
-		ifmedia_add(&sc->media, IFM_ETHER|IFM_10_5, 0, NULL);
-
-	if (sc->adapter_cnf & A_CNF_MEDIA)
-		ifmedia_add(&sc->media, IFM_ETHER|IFM_AUTO, 0, NULL);
-
-	/* Set default media from EEPROM */
-	switch (sc->adapter_cnf & A_CNF_MEDIA_TYPE) {
-	case A_CNF_MEDIA_AUTO:  media = IFM_ETHER|IFM_AUTO; break;
-	case A_CNF_MEDIA_10B_T: media = IFM_ETHER|IFM_10_T; break;
-	case A_CNF_MEDIA_10B_2: media = IFM_ETHER|IFM_10_2; break;
-	case A_CNF_MEDIA_AUI:   media = IFM_ETHER|IFM_10_5; break;
-	default:
-		device_printf(sc->dev, "no media, assuming 10baseT\n");
-		sc->adapter_cnf |= A_CNF_10B_T;
-		ifmedia_add(&sc->media, IFM_ETHER|IFM_10_T, 0, NULL);
-		if (sc->chip_type != CS8900) {
-			ifmedia_add(&sc->media,
-			    IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
-			ifmedia_add(&sc->media,
-			    IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL);
-		}
-		media = IFM_ETHER | IFM_10_T;
-		break;
-	}
-	ifmedia_set(&sc->media, media);
-	cs_mediaset(sc, media);
-
-	ether_ifattach(ifp, sc->enaddr);
-
-  	error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET | INTR_MPSAFE,
-	    NULL, csintr, sc, &sc->irq_handle);
-	if (error) {
-		ether_ifdetach(ifp);
-		free(sc->buffer, M_DEVBUF);
-		if_free(ifp);
-		mtx_destroy(&sc->lock);
-		cs_release_resources(dev);
-		return (error);
-	}
-
-	gone_by_fcp101_dev(dev);
-
-	return (0);
-}
-
-int
-cs_detach(device_t dev)
-{
-	struct cs_softc *sc;
-	struct ifnet *ifp;
-
-	sc = device_get_softc(dev);
-	ifp = sc->ifp;
-
-	CS_LOCK(sc);
-	cs_stop(sc);
-	CS_UNLOCK(sc);
-	callout_drain(&sc->timer);
-	ether_ifdetach(ifp);
-	bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);
-	cs_release_resources(dev);
-	free(sc->buffer, M_DEVBUF);
-	if_free(ifp);
-	mtx_destroy(&sc->lock);
-	return (0);
-}
-
-/*
- * Initialize the board
- */
-static void
-cs_init(void *xsc)
-{
-	struct cs_softc *sc=(struct cs_softc *)xsc;
-
-	CS_LOCK(sc);
-	cs_init_locked(sc);
-	CS_UNLOCK(sc);
-}
-
-static void
-cs_init_locked(struct cs_softc *sc)
-{
-	struct ifnet *ifp = sc->ifp;
-	int i, rx_cfg;
-
-	/*
-	 * reset watchdog timer
-	 */
-	sc->tx_timeout = 0;
-	sc->buf_len = 0;
-	
-	/*
-	 * Hardware initialization of cs
-	 */
-
-	/* Enable receiver and transmitter */
-	cs_writereg(sc, PP_LineCTL,
-		cs_readreg(sc, PP_LineCTL) | SERIAL_RX_ON | SERIAL_TX_ON);
-
-	/* Configure the receiver mode */
-	cs_setmode(sc);
-
-	/*
-	 * This defines what type of frames will cause interrupts
-	 * Bad frames should generate interrupts so that the driver
-	 * could track statistics of discarded packets
-	 */
-	rx_cfg = RX_OK_ENBL | RX_CRC_ERROR_ENBL | RX_RUNT_ENBL |
-		 RX_EXTRA_DATA_ENBL;
-	if (sc->isa_config & STREAM_TRANSFER)
-		rx_cfg |= RX_STREAM_ENBL;
-	cs_writereg(sc, PP_RxCFG, rx_cfg);
-	cs_writereg(sc, PP_TxCFG, TX_LOST_CRS_ENBL |
-		    TX_SQE_ERROR_ENBL | TX_OK_ENBL | TX_LATE_COL_ENBL |
-		    TX_JBR_ENBL | TX_ANY_COL_ENBL | TX_16_COL_ENBL);
-	cs_writereg(sc, PP_BufCFG, READY_FOR_TX_ENBL |
-		    RX_MISS_COUNT_OVRFLOW_ENBL | TX_COL_COUNT_OVRFLOW_ENBL |
-		    TX_UNDERRUN_ENBL /*| RX_DMA_ENBL*/);
-
-	/* Write MAC address into IA filter */
-	for (i=0; i<ETHER_ADDR_LEN/2; i++)
-		cs_writereg(sc, PP_IA + i * 2,
-		    sc->enaddr[i * 2] |
-		    (sc->enaddr[i * 2 + 1] << 8) );
-
-	/*
-	 * Now enable everything
-	 */
-/*
-#ifdef	CS_USE_64K_DMA
-	cs_writereg(sc, PP_BusCTL, ENABLE_IRQ | RX_DMA_SIZE_64K);
-#else
-	cs_writereg(sc, PP_BusCTL, ENABLE_IRQ);
-#endif
-*/
-	cs_writereg(sc, PP_BusCTL, ENABLE_IRQ);
-	
-	/*
-	 * Set running and clear output active flags
-	 */
-	sc->ifp->if_drv_flags |= IFF_DRV_RUNNING;
-	sc->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
-	callout_reset(&sc->timer, hz, cs_watchdog, sc);
-
-	/*
-	 * Start sending process
-	 */
-	cs_start_locked(ifp);
-}
-
-/*
- * Get the packet from the board and send it to the upper layer.
- */
-static int
-cs_get_packet(struct cs_softc *sc)
-{
-	struct ifnet *ifp = sc->ifp;
-	int status, length;
-	struct mbuf *m;
-
-#ifdef CS_DEBUG
-	int i;
-#endif
-
-	status = cs_inw(sc, RX_FRAME_PORT);
-	length = cs_inw(sc, RX_FRAME_PORT);
-
-#ifdef CS_DEBUG
-	device_printf(sc->dev, "rcvd: stat %x, len %d\n",
-		status, length);
-#endif
-
-	if (!(status & RX_OK)) {
-#ifdef CS_DEBUG
-		device_printf(sc->dev, "bad pkt stat %x\n", status);
-#endif
-		if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
-		return (-1);
-	}
-
-	MGETHDR(m, M_NOWAIT, MT_DATA);
-	if (m==NULL)
-		return (-1);
-
-	if (length > MHLEN) {
-		if (!(MCLGET(m, M_NOWAIT))) {
-			m_freem(m);
-			return (-1);
-		}
-	}
-
-	/* Initialize packet's header info */
-	m->m_pkthdr.rcvif = ifp;
-	m->m_pkthdr.len = length;
-	m->m_len = length;
-
-	/* Get the data */
-	bus_read_multi_2(sc->port_res, RX_FRAME_PORT, mtod(m, uint16_t *),
-	    (length + 1) >> 1);
-
-#ifdef CS_DEBUG
-	for (i=0;i<length;i++)
-	     printf(" %02x",(unsigned char)*((char *)(m->m_data+i)));
-	printf( "\n" );
-#endif
-
-	if (status & (RX_IA | RX_BROADCAST) || 
-	    (ifp->if_flags & IFF_MULTICAST && status & RX_HASHED)) {
-		/* Feed the packet to the upper layer */
-		(*ifp->if_input)(ifp, m);
-		if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
-		if (length == ETHER_MAX_LEN-ETHER_CRC_LEN)
-			DELAY(cs_recv_delay);
-	} else {
-		m_freem(m);
-	}
-
-	return (0);
-}
-
-/*
- * Handle interrupts
- */
-void
-csintr(void *arg)
-{
-	struct cs_softc *sc = (struct cs_softc*) arg;
-	struct ifnet *ifp = sc->ifp;
-	int status;
-
-#ifdef CS_DEBUG
-	device_printf(sc->dev, "Interrupt.\n");
-#endif
-
-	CS_LOCK(sc);
-	while ((status=cs_inw(sc, ISQ_PORT))) {
-
-#ifdef CS_DEBUG
-		device_printf(sc->dev, "from ISQ: %04x\n", status);
-#endif
-
-		switch (status & ISQ_EVENT_MASK) {
-		case ISQ_RECEIVER_EVENT:
-			cs_get_packet(sc);
-			break;
-
-		case ISQ_TRANSMITTER_EVENT:
-			if (status & TX_OK)
-				if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
-			else
-				if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
-			ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
-			sc->tx_timeout = 0;
-			break;
-
-		case ISQ_BUFFER_EVENT:
-			if (status & READY_FOR_TX) {
-				ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
-				sc->tx_timeout = 0;
-			}
-
-			if (status & TX_UNDERRUN) {
-				ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
-				sc->tx_timeout = 0;
-				if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
-			}
-			break;
-
-		case ISQ_RX_MISS_EVENT:
-			if_inc_counter(ifp, IFCOUNTER_IERRORS, status >> 6);
-			break;
-
-		case ISQ_TX_COL_EVENT:
-			if_inc_counter(ifp, IFCOUNTER_COLLISIONS, status >> 6);
-			break;
-		}
-	}
-
-	if (!(ifp->if_drv_flags & IFF_DRV_OACTIVE)) {
-		cs_start_locked(ifp);
-	}
-	CS_UNLOCK(sc);
-}
-
-/*
- * Save the data in buffer
- */
-
-static void
-cs_write_mbufs( struct cs_softc *sc, struct mbuf *m )
-{
-	int len;
-	struct mbuf *mp;
-	unsigned char *data, *buf;
-
-	for (mp=m, buf=sc->buffer, sc->buf_len=0; mp != NULL; mp=mp->m_next) {
-		len = mp->m_len;
-
-		/*
-		 * Ignore empty parts
-		 */
-		if (!len)
-			continue;
-
-		/*
-		 * Find actual data address
-		 */
-		data = mtod(mp, caddr_t);
-
-		bcopy((caddr_t) data, (caddr_t) buf, len);
-		buf += len;
-		sc->buf_len += len;
-	}
-}
-
-
-static void
-cs_xmit_buf( struct cs_softc *sc )
-{
-	bus_write_multi_2(sc->port_res, TX_FRAME_PORT, (uint16_t *)sc->buffer,
-	    (sc->buf_len + 1) >> 1);
-	sc->buf_len = 0;
-}
-
-static void
-cs_start(struct ifnet *ifp)
-{
-	struct cs_softc *sc = ifp->if_softc;
-
-	CS_LOCK(sc);
-	cs_start_locked(ifp);
-	CS_UNLOCK(sc);
-}
-
-static void
-cs_start_locked(struct ifnet *ifp)
-{
-	int length;
-	struct mbuf *m, *mp;
-	struct cs_softc *sc = ifp->if_softc;
-
-	for (;;) {
-		if (sc->buf_len)
-			length = sc->buf_len;
-		else {
-			IF_DEQUEUE( &ifp->if_snd, m );
-
-			if (m==NULL) {
-				return;
-			}
-
-			for (length=0, mp=m; mp != NULL; mp=mp->m_next)
-				length += mp->m_len;
-
-			/* Skip zero-length packets */
-			if (length == 0) {
-				m_freem(m);
-				continue;
-			}
-
-			cs_write_mbufs(sc, m);
-
-			BPF_MTAP(ifp, m);
-
-			m_freem(m);
-		}
-
-		/*
-		 * Issue a SEND command
-		 */
-		cs_outw(sc, TX_CMD_PORT, sc->send_cmd);
-		cs_outw(sc, TX_LEN_PORT, length );
-
-		/*
-		 * If there's no free space in the buffer then leave
-		 * this packet for the next time: indicate output active
-		 * and return.
-		 */
-		if (!(cs_readreg(sc, PP_BusST) & READY_FOR_TX_NOW)) {
-			sc->tx_timeout = sc->buf_len;
-			ifp->if_drv_flags |= IFF_DRV_OACTIVE;
-			return;
-		}
-
-		cs_xmit_buf(sc);
-
-		/*
-		 * Set the watchdog timer in case we never hear
-		 * from board again. (I don't know about correct
-		 * value for this timeout)
-		 */
-		sc->tx_timeout = length;
-
-		ifp->if_drv_flags |= IFF_DRV_OACTIVE;
-		return;
-	}
-}
-
-/*
- * Stop everything on the interface
- */
-static void
-cs_stop(struct cs_softc *sc)
-{
-
-	CS_ASSERT_LOCKED(sc);
-	cs_writereg(sc, PP_RxCFG, 0);
-	cs_writereg(sc, PP_TxCFG, 0);
-	cs_writereg(sc, PP_BufCFG, 0);
-	cs_writereg(sc, PP_BusCTL, 0);
-
-	sc->ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
-	sc->tx_timeout = 0;
-	callout_stop(&sc->timer);
-}
-
-/*
- * Reset the interface
- */
-static void
-cs_reset(struct cs_softc *sc)
-{
-
-	CS_ASSERT_LOCKED(sc);
-	cs_stop(sc);
-	cs_init_locked(sc);
-}
-
-static uint16_t
-cs_hash_index(struct sockaddr_dl *addr)
-{
-	uint32_t crc;
-	uint16_t idx;
-	caddr_t lla;
-
-	lla = LLADDR(addr);
-	crc = ether_crc32_le(lla, ETHER_ADDR_LEN);
-	idx = crc >> 26;
-
-	return (idx);
-}
-
-static void
-cs_setmode(struct cs_softc *sc)
-{
-	int rx_ctl;
-	uint16_t af[4];
-	uint16_t port, mask, index;
-	struct ifnet *ifp = sc->ifp;
-	struct ifmultiaddr *ifma;
-
-	/* Stop the receiver while changing filters */
-	cs_writereg(sc, PP_LineCTL, cs_readreg(sc, PP_LineCTL) & ~SERIAL_RX_ON);
-
-	if (ifp->if_flags & IFF_PROMISC) {
-		/* Turn on promiscuous mode. */
-		rx_ctl = RX_OK_ACCEPT | RX_PROM_ACCEPT;
-	} else if (ifp->if_flags & IFF_MULTICAST) {
-		/* Allow receiving frames with multicast addresses */
-		rx_ctl = RX_IA_ACCEPT | RX_BROADCAST_ACCEPT |
-			 RX_OK_ACCEPT | RX_MULTCAST_ACCEPT;
-
-		/* Start with an empty filter */
-		af[0] = af[1] = af[2] = af[3] = 0x0000;
-
-		if (ifp->if_flags & IFF_ALLMULTI) {
-			/* Accept all multicast frames */
-			af[0] = af[1] = af[2] = af[3] = 0xffff;
-		} else {
-			/* 
-			 * Set up the filter to only accept multicast
-			 * frames we're interested in.
-			 */
-			if_maddr_rlock(ifp);
-			CK_STAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
-				struct sockaddr_dl *dl =
-				    (struct sockaddr_dl *)ifma->ifma_addr;
-
-				index = cs_hash_index(dl);
-				port = (u_int16_t) (index >> 4);
-				mask = (u_int16_t) (1 << (index & 0xf));
-				af[port] |= mask;
-			}
-			if_maddr_runlock(ifp);
-		}
-
-		cs_writereg(sc, PP_LAF + 0, af[0]);
-		cs_writereg(sc, PP_LAF + 2, af[1]);
-		cs_writereg(sc, PP_LAF + 4, af[2]);
-		cs_writereg(sc, PP_LAF + 6, af[3]);
-	} else {
-		/*
-		 * Receive only good frames addressed for us and
-		 * good broadcasts.
-		 */
-		rx_ctl = RX_IA_ACCEPT | RX_BROADCAST_ACCEPT |
-			 RX_OK_ACCEPT;
-	}
-
-	/* Set up the filter */
-	cs_writereg(sc, PP_RxCTL, RX_DEF_ACCEPT | rx_ctl);
-
-	/* Turn on receiver */
-	cs_writereg(sc, PP_LineCTL, cs_readreg(sc, PP_LineCTL) | SERIAL_RX_ON);
-}
-
-static int
-cs_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
-{
-	struct cs_softc *sc=ifp->if_softc;
-	struct ifreq *ifr = (struct ifreq *)data;
-	int error=0;
-
-#ifdef CS_DEBUG
-	if_printf(ifp, "%s command=%lx\n", __func__, command);
-#endif
-
-	switch (command) {
-	case SIOCSIFFLAGS:
-		/*
-		 * Switch interface state between "running" and
-		 * "stopped", reflecting the UP flag.
-		 */
-		CS_LOCK(sc);
-		if (sc->ifp->if_flags & IFF_UP) {
-			if ((sc->ifp->if_drv_flags & IFF_DRV_RUNNING)==0) {
-				cs_init_locked(sc);
-			}
-		} else {
-			if ((sc->ifp->if_drv_flags & IFF_DRV_RUNNING)!=0) {
-				cs_stop(sc);
-			}
-		}		
-		/*
-		 * Promiscuous and/or multicast flags may have changed,
-		 * so reprogram the multicast filter and/or receive mode.
-		 *
-		 * See note about multicasts in cs_setmode
-		 */
-		cs_setmode(sc);
-		CS_UNLOCK(sc);
-		break;
-
-	case SIOCADDMULTI:
-	case SIOCDELMULTI:
-	    /*
-	     * Multicast list has changed; set the hardware filter
-	     * accordingly.
-	     *
-	     * See note about multicasts in cs_setmode
-	     */
-	    CS_LOCK(sc);
-	    cs_setmode(sc);
-	    CS_UNLOCK(sc);
-	    error = 0;
-	    break;
-
-	case SIOCSIFMEDIA:
-	case SIOCGIFMEDIA:
-		error = ifmedia_ioctl(ifp, ifr, &sc->media, command);
-		break;
-
-	default:
-		error = ether_ioctl(ifp, command, data);
-		break;
-	}
-
-	return (error);
-}
-
-/*
- * Device timeout/watchdog routine. Entered if the device neglects to
- * generate an interrupt after a transmit has been started on it.
- */
-static void
-cs_watchdog(void *arg)
-{
-	struct cs_softc *sc = arg;
-	struct ifnet *ifp = sc->ifp;
-
-	CS_ASSERT_LOCKED(sc);
-	if (sc->tx_timeout && --sc->tx_timeout == 0) {
-		if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
-		log(LOG_ERR, "%s: device timeout\n", ifp->if_xname);
-
-		/* Reset the interface */
-		if (ifp->if_flags & IFF_UP)
-			cs_reset(sc);
-		else
-			cs_stop(sc);
-	}
-	callout_reset(&sc->timer, hz, cs_watchdog, sc);
-}
-
-static int
-cs_mediachange(struct ifnet *ifp)
-{
-	struct cs_softc *sc = ifp->if_softc;
-	struct ifmedia *ifm = &sc->media;
-	int error;
-
-	if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
-		return (EINVAL);
-
-	CS_LOCK(sc);
-	error = cs_mediaset(sc, ifm->ifm_media);
-	CS_UNLOCK(sc);
-	return (error);
-}
-
-static void
-cs_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr)
-{
-	int line_status;
-	struct cs_softc *sc = ifp->if_softc;
-
-	CS_LOCK(sc);
-	ifmr->ifm_active = IFM_ETHER;
-	line_status = cs_readreg(sc, PP_LineST);
-	if (line_status & TENBASET_ON) {
-		ifmr->ifm_active |= IFM_10_T;
-		if (sc->chip_type != CS8900) {
-			if (cs_readreg(sc, PP_AutoNegST) & FDX_ACTIVE)
-				ifmr->ifm_active |= IFM_FDX;
-			if (cs_readreg(sc, PP_AutoNegST) & HDX_ACTIVE)
-				ifmr->ifm_active |= IFM_HDX;
-		}
-		ifmr->ifm_status = IFM_AVALID;
-		if (line_status & LINK_OK)
-			ifmr->ifm_status |= IFM_ACTIVE;
-	} else {
-		if (line_status & AUI_ON) {
-			cs_writereg(sc, PP_SelfCTL, cs_readreg(sc, PP_SelfCTL) |
-			    HCB1_ENBL);
-			if (((sc->adapter_cnf & A_CNF_DC_DC_POLARITY)!=0)^
-			    (cs_readreg(sc, PP_SelfCTL) & HCB1))
-				ifmr->ifm_active |= IFM_10_2;
-			else
-				ifmr->ifm_active |= IFM_10_5;
-		}
-	}
-	CS_UNLOCK(sc);
-}
-
-static int
-cs_mediaset(struct cs_softc *sc, int media)
-{
-	int error = 0;
-
-	/* Stop the receiver & transmitter */
-	cs_writereg(sc, PP_LineCTL, cs_readreg(sc, PP_LineCTL) &
-	    ~(SERIAL_RX_ON | SERIAL_TX_ON));
-
-#ifdef CS_DEBUG
-	device_printf(sc->dev, "%s media=%x\n", __func__, media);
-#endif
-
-	switch (IFM_SUBTYPE(media)) {
-	default:
-	case IFM_AUTO:
-		/*
-		 * This chip makes it a little hard to support this, so treat
-		 * it as IFM_10_T, auto duplex.
-		 */
-		enable_tp(sc);
-		cs_duplex_auto(sc);
-		break;
-	case IFM_10_T:
-		enable_tp(sc);
-		if (media & IFM_FDX)
-			cs_duplex_full(sc);
-		else if (media & IFM_HDX)
-			cs_duplex_half(sc);
-		else
-			error = cs_duplex_auto(sc);
-		break;
-	case IFM_10_2:
-		enable_bnc(sc);
-		break;
-	case IFM_10_5:
-		enable_aui(sc);
-		break;
-	}
-
-	/*
-	 * Turn the transmitter & receiver back on
-	 */
-	cs_writereg(sc, PP_LineCTL, cs_readreg(sc, PP_LineCTL) |
-	    SERIAL_RX_ON | SERIAL_TX_ON); 
-
-	return (error);
-}
diff --git a/sys/dev/cs/if_cs_isa.c b/sys/dev/cs/if_cs_isa.c
deleted file mode 100644
index 4b1e5d7ba0f8..000000000000
--- a/sys/dev/cs/if_cs_isa.c
+++ /dev/null
@@ -1,123 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
- *
- * Copyright (c) 1997,1998 Maxim Bolotin and Oleg Sharoiko.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice unmodified, this list of conditions, and the following
- *    disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/lock.h>
-#include <sys/kernel.h>
-#include <sys/mutex.h>
-#include <sys/socket.h>
-
-#include <sys/module.h>
-#include <sys/bus.h>
-
-#include <machine/bus.h>
-#include <machine/resource.h>
-
-#include <net/ethernet.h> 
-#include <net/if.h>
-#include <net/if_media.h>
-
-#include <isa/isavar.h>
-
-#include <dev/cs/if_csvar.h>
-#include <dev/cs/if_csreg.h>
-
-static int		cs_isa_probe(device_t);
-static int		cs_isa_attach(device_t);
-
-static struct isa_pnp_id cs_ids[] = {
-	{ 0x4060630e, NULL },		/* CSC6040 */
-	{ 0x10104d24, NULL },		/* IBM EtherJet */
-	{ 0, NULL }
-};
-
-/*
- * Determine if the device is present
- */
-static int
-cs_isa_probe(device_t dev)
-{
-	int error;
-
-	/* Check isapnp ids */
-	error = ISA_PNP_PROBE(device_get_parent(dev), dev, cs_ids);
-
-	/* If the card had a PnP ID that didn't match any we know about */
-	if (error == ENXIO)
-                goto end;
-
-        /* If we've matched, or there's no PNP ID, probe chip */
-	if (error == 0 || error == ENOENT)
-		error = cs_cs89x0_probe(dev);
-end:
-	/* Make sure IRQ is assigned for probe message and available */
-	if (error == 0)
-                error = cs_alloc_irq(dev, 0);
-
-        cs_release_resources(dev);
-        return (error);
-}
-
-static int
-cs_isa_attach(device_t dev)
-{
-        struct cs_softc *sc = device_get_softc(dev);
-        
-	cs_alloc_port(dev, 0, CS_89x0_IO_PORTS);
-        cs_alloc_irq(dev, sc->irq_rid);
-                
-        return (cs_attach(dev));
-}
-
-static device_method_t cs_isa_methods[] = {
-	/* Device interface */
-	DEVMETHOD(device_probe,		cs_isa_probe),
-	DEVMETHOD(device_attach,	cs_isa_attach),
-	DEVMETHOD(device_detach,	cs_detach),
-
-	{ 0, 0 }
-};
-
-static driver_t cs_isa_driver = {
-	"cs",
-	cs_isa_methods,
-	sizeof(struct cs_softc),
-};
-
-extern devclass_t cs_devclass;
-
-DRIVER_MODULE(cs, isa, cs_isa_driver, cs_devclass, 0, 0);
-MODULE_DEPEND(cs, isa, 1, 1, 1);
-MODULE_DEPEND(cs, ether, 1, 1, 1);
-ISA_PNP_INFO(cs_ids);
diff --git a/sys/dev/cs/if_cs_pccard.c b/sys/dev/cs/if_cs_pccard.c
deleted file mode 100644
index 260e81bd79fb..000000000000
--- a/sys/dev/cs/if_cs_pccard.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
- *
- * Copyright (c) 1999 M. Warner Losh <imp@village.org> 
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/lock.h>
-#include <sys/kernel.h>
-#include <sys/mutex.h>
-#include <sys/socket.h>
-
-#include <sys/module.h>
-#include <sys/bus.h>
-
-#include <machine/bus.h>
-#include <machine/resource.h>
- 
-#include <net/ethernet.h> 
-#include <net/if.h> 
-#include <net/if_media.h>
-
-#include <dev/cs/if_csvar.h>
-#include <dev/cs/if_csreg.h>
-#include <dev/pccard/pccardvar.h>
-#include <dev/pccard/pccard_cis.h>
-
-#include "card_if.h"
-#include "pccarddevs.h"
-
-static const struct pccard_product cs_pccard_products[] = {
-	PCMCIA_CARD(IBM, ETHERJET),
-	{ NULL }
-};
-
-static int
-cs_pccard_probe(device_t dev)
-{
-	const struct pccard_product *pp;
-	uint32_t	fcn = PCCARD_FUNCTION_UNSPEC;
-
-	/* Make sure we're a network function */
-	pccard_get_function(dev, &fcn);
-	if (fcn != PCCARD_FUNCTION_NETWORK)
-		return (ENXIO);
-
-	if ((pp = pccard_product_lookup(dev, cs_pccard_products,
-	    sizeof(cs_pccard_products[0]), NULL)) != NULL) {
-		if (pp->pp_name != NULL)
-			device_set_desc(dev, pp->pp_name);
-		return 0;
-	}
-	return EIO;
-}
-
-static int
-cs_pccard_attach(device_t dev)
-{
-	struct cs_softc *sc = device_get_softc(dev);
-	int error;
-
-	sc->flags |= CS_NO_IRQ;
-	error = cs_cs89x0_probe(dev);
-	if (error != 0)
-		return (error);
-	error = cs_alloc_irq(dev, sc->irq_rid);
-	if (error != 0)
-		goto bad;
-
-	return (cs_attach(dev));
-bad:
-	cs_release_resources(dev);
-	return (error);
-}
-
-static device_method_t cs_pccard_methods[] = {
-	/* Device interface */
-	DEVMETHOD(device_probe,		cs_pccard_probe),
-	DEVMETHOD(device_attach,	cs_pccard_attach),
-	DEVMETHOD(device_detach,	cs_detach),
-
-	{ 0, 0 }
-};
-
-static driver_t cs_pccard_driver = {
-	"cs",
-	cs_pccard_methods,
-	sizeof(struct cs_softc),
-};
-
-extern devclass_t cs_devclass;
-
-DRIVER_MODULE(cs, pccard, cs_pccard_driver, cs_devclass, 0, 0);
-MODULE_DEPEND(cs, ether, 1, 1, 1);
-PCCARD_PNP_INFO(cs_pccard_products);
diff --git a/sys/dev/cs/if_csreg.h b/sys/dev/cs/if_csreg.h
deleted file mode 100644
index 8eea27322d17..000000000000
--- a/sys/dev/cs/if_csreg.h
+++ /dev/null
@@ -1,590 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
- *
- * Copyright (c) 1997,1998 Maxim Bolotin and Oleg Sharoiko.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice unmodified, this list of conditions, and the following
- *    disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- */
-
-/*
- * $FreeBSD$
- */
-
-#include <sys/rman.h>
-
-#define CS_89x0_IO_PORTS	0x0020
-
-#define PP_ChipID 0x0000	/* offset   0h -> Corp -ID              */
-				/* offset   2h -> Model/Product Number  */
-				/* offset   3h -> Chip Revision Number  */
-
-#define PP_ISAIOB		0x0020	/*  IO base address */
-#define	PP_CS8900_ISAINT	0x0022	/*  ISA interrupt select */
-#define	PP_CS8900_ISADMA	0x0024	/*  ISA Rec DMA channel */
-#define PP_CS8920_ISAINT	0x0370	/*  ISA interrupt select */
-#define PP_CS8920_ISADMA 	0x0374	/*  ISA Rec DMA channel */
-#define PP_ISASOF		0x0026	/*  ISA DMA offset */
-#define PP_DmaFrameCnt		0x0028	/*  ISA DMA Frame count */
-#define PP_DmaByteCnt		0x002A	/*  ISA DMA Byte count */
-#define PP_CS8920_ISAMemB	0x0348	/*  Memory base */
-
-/* EEPROM data and command registers */
-#define PP_EECMD		0x0040	/*  NVR Interface Command register */
-#define PP_EEData		0x0042	/*  NVR Interface Data Register */
-#define PP_DebugReg		0x0044	/*  Debug Register */
-
-#define PP_RxCFG		0x0102	/*  Rx Bus config */
-#define PP_RxCTL		0x0104	/*  Receive Control Register */
-#define PP_TxCFG		0x0106	/*  Transmit Config Register */
-#define PP_TxCMD		0x0108	/*  Transmit Command Register */
-#define PP_BufCFG		0x010A	/*  Bus configuration Register */
-#define PP_LineCTL		0x0112	/*  Line Config Register */
-#define PP_SelfCTL		0x0114	/*  Self Command Register */
-#define PP_BusCTL		0x0116	/*  ISA bus control Register */
-#define PP_TestCTL		0x0118	/*  Test Register */
-#define PP_AutoNegCTL		0x011C	/*  Auto Negotiation Ctrl */
-
-#define PP_ISQ			0x0120	/*  Interrupt Status */
-#define PP_RxEvent		0x0124	/*  Rx Event Register */
-#define PP_TxEvent		0x0128	/*  Tx Event Register */
-#define PP_BufEvent		0x012C	/*  Bus Event Register */
-#define PP_RxMiss		0x0130	/*  Receive Miss Count */
-#define PP_TxCol		0x0132	/*  Transmit Collision Count */
-#define PP_LineST		0x0134	/*  Line State Register */
-#define PP_SelfST		0x0136	/*  Self State register */
-#define PP_BusST		0x0138	/*  Bus Status */
-#define PP_TDR			0x013C	/*  Time Domain Reflectometry */
-#define PP_AutoNegST		0x013E	/*  Auto Neg Status */
-#define PP_TxCommand		0x0144	/*  Tx Command */
-#define PP_TxLength		0x0146	/*  Tx Length */
-#define PP_LAF			0x0150	/*  Hash Table */
-#define PP_IA			0x0158	/*  Physical Address Register */
-
-#define PP_RxStatus		0x0400	/*  Receive start of frame */
-#define PP_RxLength		0x0402	/*  Receive Length of frame */
-#define PP_RxFrame		0x0404	/*  Receive frame pointer */
-#define PP_TxFrame		0x0A00	/*  Transmit frame pointer */
-
-/*
- *  Primary I/O Base Address. If no I/O base is supplied by the user, then this
- *  can be used as the default I/O base to access the PacketPage Area.
- */
-#define DEFAULTIOBASE		0x0300
-#define FIRST_IO		0x020C	/*  First I/O port to check */
-#define LAST_IO			0x037C	/*  Last I/O port to check (+10h) */
-#define ADD_MASK		0x3000	/*  Mask it use of the ADD_PORT register */
-#define ADD_SIG			0x3000	/*  Expected ID signature */
-
-#define CHIP_EISA_ID_SIG	0x630E	/*  Product ID Code for Crystal Chip (CS8900 spec 4.3) */
-
-#define PRODUCT_ID_ADD		0x0002	/*  Address of product ID */
-
-/*  Mask to find out the types of  registers */
-#define REG_TYPE_MASK		0x001F
-
-/*  Eeprom Commands */
-#define ERSE_WR_ENBL		0x00F0
-#define ERSE_WR_DISABLE		0x0000
-
-/*  Defines Control/Config register quintuplet numbers */
-#define RX_BUF_CFG		0x0003
-#define RX_CONTROL		0x0005
-#define TX_CFG			0x0007
-#define TX_COMMAND		0x0009
-#define BUF_CFG			0x000B
-#define LINE_CONTROL		0x0013
-#define SELF_CONTROL		0x0015
-#define BUS_CONTROL		0x0017
-#define TEST_CONTROL		0x0019
-
-/*  Defines Status/Count registers quintuplet numbers */
-#define RX_EVENT		0x0004
-#define TX_EVENT		0x0008
-#define BUF_EVENT		0x000C
-#define RX_MISS_COUNT		0x0010
-#define TX_COL_COUNT		0x0012
-#define LINE_STATUS		0x0014
-#define SELF_STATUS		0x0016
-#define BUS_STATUS		0x0018
-#define TDR			0x001C
-
-/*
- * PP_RxCFG - Receive  Configuration and Interrupt Mask
- *			 bit definition -  Read/write
- */
-#define SKIP_1			0x0040
-#define RX_STREAM_ENBL		0x0080
-#define RX_OK_ENBL		0x0100
-#define RX_DMA_ONLY		0x0200
-#define AUTO_RX_DMA		0x0400
-#define BUFFER_CRC		0x0800
-#define RX_CRC_ERROR_ENBL	0x1000
-#define RX_RUNT_ENBL		0x2000
-#define RX_EXTRA_DATA_ENBL	0x4000
-
-/* PP_RxCTL - Receive Control bit definition - Read/write */
-#define RX_IA_HASH_ACCEPT	0x0040
-#define RX_PROM_ACCEPT		0x0080
-#define RX_OK_ACCEPT		0x0100
-#define RX_MULTCAST_ACCEPT	0x0200
-#define RX_IA_ACCEPT		0x0400
-#define RX_BROADCAST_ACCEPT	0x0800
-#define RX_BAD_CRC_ACCEPT	0x1000
-#define RX_RUNT_ACCEPT		0x2000
-#define RX_EXTRA_DATA_ACCEPT	0x4000
-#define RX_ALL_ACCEPT		(RX_PROM_ACCEPT | RX_BAD_CRC_ACCEPT |	\
-				 RX_RUNT_ACCEPT | RX_EXTRA_DATA_ACCEPT)
-/*
- *  Default receive mode - individually addressed, broadcast, and error free
- */
-#define RX_DEF_ACCEPT (RX_IA_ACCEPT | RX_BROADCAST_ACCEPT | RX_OK_ACCEPT)
-
-/*
- * PP_TxCFG - Transmit Configuration Interrupt Mask
- *			 bit definition - Read/write
- */
-#define TX_LOST_CRS_ENBL	0x0040
-#define TX_SQE_ERROR_ENBL	0x0080
-#define TX_OK_ENBL		0x0100
-#define TX_LATE_COL_ENBL	0x0200
-#define TX_JBR_ENBL		0x0400
-#define TX_ANY_COL_ENBL		0x0800
-#define TX_16_COL_ENBL		0x8000
-
-/*
- * PP_TxCMD - Transmit Command bit definition - Read-only
- */
-#define TX_START_4_BYTES	0x0000
-#define TX_START_64_BYTES	0x0040
-#define TX_START_128_BYTES	0x0080
-#define TX_START_ALL_BYTES	0x00C0
-#define TX_FORCE		0x0100
-#define TX_ONE_COL		0x0200
-#define TX_TWO_PART_DEFF_DISABLE 0x0400
-#define TX_NO_CRC		0x1000
-#define TX_RUNT			0x2000
-
-/*
- * PP_BufCFG - Buffer Configuration Interrupt Mask
- *			 bit definition - Read/write
- */
-#define GENERATE_SW_INTERRUPT	0x0040
-#define RX_DMA_ENBL		0x0080
-#define READY_FOR_TX_ENBL	0x0100
-#define TX_UNDERRUN_ENBL	0x0200
-#define RX_MISS_ENBL		0x0400
-#define RX_128_BYTE_ENBL	0x0800
-#define TX_COL_COUNT_OVRFLOW_ENBL 0x1000
-#define RX_MISS_COUNT_OVRFLOW_ENBL 0x2000
-#define RX_DEST_MATCH_ENBL	0x8000
-
-/*
- * PP_LineCTL - Line Control bit definition - Read/write
- */
-#define SERIAL_RX_ON		0x0040
-#define SERIAL_TX_ON		0x0080
-#define AUI_ONLY		0x0100
-#define AUTO_AUI_10BASET	0x0200
-#define MODIFIED_BACKOFF	0x0800
-#define NO_AUTO_POLARITY	0x1000
-#define TWO_PART_DEFDIS		0x2000
-#define LOW_RX_SQUELCH		0x4000
-
-/*
- * PP_SelfCTL - Software Self Control bit definition - Read/write
- */
-#define POWER_ON_RESET		0x0040
-#define SW_STOP			0x0100
-#define SLEEP_ON		0x0200
-#define AUTO_WAKEUP		0x0400
-#define HCB0_ENBL		0x1000
-#define HCB1_ENBL		0x2000
-#define HCB0			0x4000
-#define HCB1			0x8000
-
-/*
- * PP_BusCTL - ISA Bus Control bit definition - Read/write
- */
-#define RESET_RX_DMA		0x0040
-#define MEMORY_ON		0x0400
-#define DMA_BURST_MODE		0x0800
-#define IO_CHANNEL_READY_ON	0x1000
-#define RX_DMA_SIZE_64Ks	0x2000
-#define ENABLE_IRQ		0x8000
-
-/*
- * PP_TestCTL - Test Control bit definition - Read/write
- */
-#define LINK_OFF		0x0080
-#define ENDEC_LOOPBACK		0x0200
-#define AUI_LOOPBACK		0x0400
-#define BACKOFF_OFF		0x0800
-#define FAST_TEST		0x8000
-
-/*
- * PP_RxEvent - Receive Event Bit definition - Read-only
- */
-#define RX_IA_HASHED		0x0040
-#define RX_DRIBBLE		0x0080
-#define RX_OK			0x0100
-#define RX_HASHED		0x0200
-#define RX_IA			0x0400
-#define RX_BROADCAST		0x0800
-#define RX_CRC_ERROR		0x1000
-#define RX_RUNT			0x2000
-#define RX_EXTRA_DATA		0x4000
-
-#define HASH_INDEX_MASK		0x0FC00
-
-/*
- * PP_TxEvent - Transmit Event Bit definition - Read-only
- */
-#define TX_LOST_CRS		0x0040
-#define TX_SQE_ERROR		0x0080
-#define TX_OK			0x0100
-#define TX_LATE_COL		0x0200
-#define TX_JBR			0x0400
-#define TX_16_COL		0x8000
-#define TX_SEND_OK_BITS		(TX_OK | TX_LOST_CRS)
-#define TX_COL_COUNT_MASK	0x7800
-
-/*
- * PP_BufEvent - Buffer Event Bit definition - Read-only
- */
-#define SW_INTERRUPT		0x0040
-#define RX_DMA			0x0080
-#define READY_FOR_TX		0x0100
-#define TX_UNDERRUN		0x0200
-#define RX_MISS			0x0400
-#define RX_128_BYTE		0x0800
-#define TX_COL_OVRFLW		0x1000
-#define RX_MISS_OVRFLW		0x2000
-#define RX_DEST_MATCH		0x8000
-
-/*
- * PP_LineST - Ethernet Line Status bit definition - Read-only
- */
-#define LINK_OK			0x0080
-#define AUI_ON			0x0100
-#define TENBASET_ON		0x0200
-#define POLARITY_OK		0x1000
-#define CRS_OK			0x4000
-
-/*
- * PP_SelfST - Chip Software Status bit definition
- */
-#define ACTIVE_33V		0x0040
-#define INIT_DONE		0x0080
-#define SI_BUSY			0x0100
-#define EEPROM_PRESENT		0x0200
-#define EEPROM_OK		0x0400
-#define EL_PRESENT		0x0800
-#define EE_SIZE_64		0x1000
-
-/*
- * PP_BusST - ISA Bus Status bit definition
- */
-#define TX_BID_ERROR		0x0080
-#define READY_FOR_TX_NOW	0x0100
-
-/*
- * PP_AutoNegCTL - Auto Negotiation Control bit definition
- */
-#define RE_NEG_NOW		0x0040
-#define ALLOW_FDX		0x0080
-#define AUTO_NEG_ENABLE		0x0100
-#define NLP_ENABLE		0x0200
-#define FORCE_FDX		0x8000
-#define AUTO_NEG_BITS		(FORCE_FDX | NLP_ENABLE | AUTO_NEG_ENABLE)
-#define AUTO_NEG_MASK		(FORCE_FDX | NLP_ENABLE | AUTO_NEG_ENABLE | \
-				 ALLOW_FDX | RE_NEG_NOW)
-
-/*
- * PP_AutoNegST - Auto Negotiation Status bit definition
- */
-#define AUTO_NEG_BUSY		0x0080
-#define FLP_LINK		0x0100
-#define FLP_LINK_GOOD		0x0800
-#define LINK_FAULT		0x1000
-#define HDX_ACTIVE		0x4000
-#define FDX_ACTIVE		0x8000
-
-/*
- * The following block defines the ISQ event types
- */
-#define ISQ_RECEIVER_EVENT	0x04
-#define ISQ_TRANSMITTER_EVENT	0x08
-#define ISQ_BUFFER_EVENT	0x0c
-#define ISQ_RX_MISS_EVENT	0x10
-#define ISQ_TX_COL_EVENT	0x12
-
-#define ISQ_EVENT_MASK		0x003F	/* ISQ mask to find out type of event */
-#define ISQ_HIST		16	/* small history buffer */
-#define AUTOINCREMENT		0x8000	/* Bit mask to set bit-15 for autoincrement */
-
-#define TXRXBUFSIZE		0x0600
-#define RXDMABUFSIZE		0x8000
-#define RXDMASIZE		0x4000
-#define TXRX_LENGTH_MASK	0x07FF
-
-/*  rx options bits */
-#define RCV_WITH_RXON		1       /*  Set SerRx ON */
-#define RCV_COUNTS		2       /*  Use Framecnt1 */
-#define RCV_PONG		4       /*  Pong respondent */
-#define RCV_DONG		8       /*  Dong operation */
-#define RCV_POLLING		0x10	/*  Poll RxEvent */
-#define RCV_ISQ			0x20	/*  Use ISQ, int */
-#define RCV_AUTO_DMA		0x100	/*  Set AutoRxDMAE */
-#define RCV_DMA			0x200	/*  Set RxDMA only */
-#define RCV_DMA_ALL		0x400	/*  Copy all DMA'ed */
-#define RCV_FIXED_DATA		0x800	/*  Every frame same */
-#define RCV_IO			0x1000	/*  Use ISA IO only */
-#define RCV_MEMORY		0x2000	/*  Use ISA Memory */
-
-#define RAM_SIZE		0x1000      /*  The card has 4k bytes or RAM */
-#define PKT_START		PP_TxFrame  /*  Start of packet RAM */
-
-#define RX_FRAME_PORT		0x0000
-#define TX_FRAME_PORT		RX_FRAME_PORT
-#define TX_CMD_PORT		0x0004
-#define TX_CS8900_NOW		0x0000  /* Tx packet after   5 bytes copied */
-#define TX_CS8900_AFTER_381	0x0020  /* Tx packet after 381 bytes copied */
-#define TX_CS8900_AFTER_ALL	0x0060  /* Tx packet after all bytes copied */
-#define TX_CS8920_NOW		0x0000  /* Tx packet after   5 bytes copied */
-#define TX_CS8920_AFTER_381	0x0040  /* Tx packet after 381 bytes copied */
-#define TX_CS8920_AFTER_1021	0x0080  /* Tx packet after1021 bytes copied */
-#define TX_CS8920_AFTER_ALL	0x00C0  /* Tx packet after all bytes copied */
-#define TX_LEN_PORT		0x0006
-#define ISQ_PORT		0x0008
-#define ADD_PORT		0x000A
-#define DATA_PORT		0x000C
-
-#define EEPROM_WRITE_EN		0x00F0
-#define EEPROM_WRITE_DIS	0x0000
-#define EEPROM_WRITE_CMD	0x0100
-#define EEPROM_READ_CMD		0x0200
-
-/*  Receive Header
- *  Description of header of each packet in receive area of memory
- */
-#define RBUF_EVENT_LOW	0  /* Low byte of RxEvent - status of received frame */
-#define RBUF_EVENT_HIGH	1  /* High byte of RxEvent - status of received frame */
-#define RBUF_LEN_LOW	2  /* Length of received data - low byte */
-#define RBUF_LEN_HI	3  /* Length of received data - high byte */
-#define RBUF_HEAD_LEN	4  /* Length of this header */
-
-#define CHIP_READ 0x1  /* Used to mark state of the repins code (chip or dma) */
-#define DMA_READ  0x2  /* Used to mark state of the repins code (chip or dma) */
-
-/*  for bios scan */
-/*  */
-#ifdef CSDEBUG
-/*  use these values for debugging bios scan */
-#define BIOS_START_SEG		0x00000
-#define BIOS_OFFSET_INC		0x0010
-#else
-#define BIOS_START_SEG		0x0c000
-#define BIOS_OFFSET_INC		0x0200
-#endif
-
-#define BIOS_LAST_OFFSET	0x0fc00
-
-/*
- *  Word offsets into the EEPROM configuration buffer
- */
-#define ISA_CNF_OFFSET		0x3
-#define		INT_NO_MASK		0x000F
-#define		DMA_NO_MASK		0x0070
-#define		USE_SA			0x0080
-#define		IOCHRDY_ENABLE		0x0100
-#define		ISA_DMA_SIZE		0x0200	/* 0 16k 1 64k */
-#define		ISA_AUTO_RxDMA		0x0400
-#define		ISA_RxDMA		0x0800
-#define		DMA_BURST		0x1000
-#define		STREAM_TRANSFER		0x2000
-#define		ANY_ISA_DMA		(ISA_AUTO_RxDMA | ISA_RxDMA)
-#define		BOOT_PROM_FLAG		0x4000
-#define		MEMORY_MODE		0x8000
-
-#define	PACKET_PAGE_BASE	(ISA_CNF_OFFSET + 1)
-#define	BOOT_ROM_BASE		(ISA_CNF_OFFSET + 2)
-#define	BOOT_PROM_MASK		(ISA_CNF_OFFSET + 3)
-
-#define TX_CTL_OFFSET		(ISA_CNF_OFFSET + 4)	/*  8900 eeprom */
-#define AUTO_NEG_CNF_OFFSET	(ISA_CNF_OFFSET + 4)	/*  8920 eeprom */
-	/*
-	 *  the assumption here is that the bits in the eeprom are generally 
-	 *  in the same position as those in the autonegctl register. 
-	 *  Of course the IMM bit is not in that register so it must be 
-	 *  masked out
-	 */
-#define		EE_FORCE_FDX		0x8000
-#define		EE_NLP_ENABLE		0x0200
-#define		EE_AUTO_NEG_ENABLE	0x0100
-#define		EE_ALLOW_FDX		0x0080
-#define		EE_AUTO_NEG_CNF_MASK	(EE_FORCE_FDX | EE_NLP_ENABLE | \
-				 EE_AUTO_NEG_ENABLE | EE_ALLOW_FDX)
-#define		IMM_BIT			0x0040	/*  ignore missing media */
-
-#define ADAPTER_CNF_OFFSET	(ISA_CNF_OFFSET + 5)
-#define A_CNF_MEDIA             0x0007
-#define A_CNF_10B_T		0x0001
-#define A_CNF_AUI		0x0002
-#define A_CNF_10B_2		0x0004
-#define A_CNF_MEDIA_TYPE	0x0060
-#define A_CNF_MEDIA_AUTO	0x0000
-#define A_CNF_MEDIA_10B_T	0x0020
-#define A_CNF_MEDIA_AUI		0x0040
-#define A_CNF_MEDIA_10B_2	0x0060
-#define A_CNF_DC_DC_POLARITY	0x0080
-#define A_CNF_WAKE_ENABLED	0x0100
-#define A_CNF_WAKE_CFG		0x0200
-#define A_CNF_CAN_WAKE		0x0400
-#define A_CNF_OPT_FLAGS		0x1800	/* 00 server, 01 DOS 10 multi-user */
-#define A_CNF_NO_AUTO_POLARITY	0x2000
-#define A_CNF_LOW_RX_SQUELCH	0x4000
-#define A_CNF_EXTND_10B_2	0x8000
-
-#define MFG_DATE_OFFSET		(ISA_CNF_OFFSET + 8)
-
-#define PACKET_PAGE_OFFSET	0x8
-
-/*  DMA controller registers */
-#define DMA_BASE		0x00   /* DMA controller base */
-#define DMA_BASE_2		0x0C0  /* DMA controller base */
-
-#define DMA_STAT		0x0D0  /* DMA controller status register */
-#define DMA_MASK		0x0D4  /* DMA controller mask register */
-#define DMA_MODE		0x0D6  /* DMA controller mode register */
-#define DMA_RESETFF		0x0D8  /* DMA controller first/last flip flop */
-
-/*  DMA data */
-#define DMA_DISABLE		0x04   /*  Disable channel n */
-#define DMA_ENABLE		0x00   /*  Enable channel n */
-/*  Demand transfers, incr. address, auto init, writes, ch. n */
-#define DMA_RX_MODE		0x14
-/*  Demand transfers, incr. address, auto init, reads, ch. n */
-#define DMA_TX_MODE		0x18
-
-#define DMA_SIZE		(16*1024)	/* Size of dma buffer - 16k */
-
-#define CS8900			0x0000
-#define CS8920			0x4000   
-#define CS8920M			0x6000   
-#define REVISON_BITS		0x1F00
-#define EEVER_NUMBER		0x12
-#define CHKSUM_LEN		0x14
-#define CHKSUM_VAL		0x0000
-#define START_EEPROM_DATA	0x001c /* Offset into eeprom for start of data */
-#define IRQ_MAP_EEPROM_DATA	0x0046 /* Offset into eeprom for the IRQ map */
-#define IRQ_MAP_LEN		0x0004 /* No of bytes to read for the IRQ map */
-#define PNP_IRQ_FRMT		0x0022 /* PNP small item IRQ format */
-#define CS8900_IRQ_MAP		0x1c20 /* This IRQ map is fixed */
-
-#define CS8920_NO_INTS		0x0F   /*  Max CS8920 interrupt select # */
-
-#define PNP_ADD_PORT		0x0279
-#define PNP_WRITE_PORT		0x0A79
-
-#define GET_PNP_ISA_STRUCT	0x40
-#define PNP_ISA_STRUCT_LEN	0x06
-#define PNP_CSN_CNT_OFF		0x01
-#define PNP_RD_PORT_OFF		0x02
-#define PNP_FUNCTION_OK		0x00
-#define PNP_WAKE		0x03
-#define PNP_RSRC_DATA		0x04
-#define PNP_RSRC_READY		0x01
-#define PNP_STATUS		0x05
-#define PNP_ACTIVATE		0x30
-#define PNP_CNF_IO_H		0x60
-#define PNP_CNF_IO_L		0x61
-#define PNP_CNF_INT		0x70
-#define PNP_CNF_DMA		0x74
-#define PNP_CNF_MEM		0x48
-
-#define BIT0			1
-#define BIT15			0x8000
-
-#define	CS_DUPLEX_AUTO		0
-#define CS_DUPLEX_FULL		1
-#define CS_DUPLEX_HALF		2
-
-/*
- * It would appear that for pccards (well, the IBM EtherJet PCMCIA card) that
- * are connected to card bus bridges there's a problem.  For reading the
- * value back you have to go into 8 bit mode.  The Linux driver also uses
- * this trick.  This may be a bug in the card and how it handles fast 16-bit
- * read after a write.
- */
-#define HACK_FOR_CARDBUS_BRIDGE_PROBLEM
-#ifdef HACK_FOR_CARDBUS_BRIDGE_PROBLEM
-static __inline uint16_t
-cs_inw(struct cs_softc *sc, int off)
-{
-	if (off & 1)
-		device_printf(sc->dev, "BUG: inw to an odd address.\n");
-	return ((bus_read_1(sc->port_res, off)) |
-	    (bus_read_1(sc->port_res, off + 1) << 8));
-}
-#else
-static __inline uint16_t
-cs_inw(struct cs_softc *sc, int off)
-{
-	return (bus_read_2(sc->port_res, off));
-}
-#endif
-
-static __inline void
-cs_outw(struct cs_softc *sc, int off, uint16_t val)
-{
-	bus_write_2(sc->port_res, off, val);
-}
-
-static __inline uint16_t
-cs_readreg(struct cs_softc *sc, uint16_t port)
-{
-	cs_outw(sc, ADD_PORT, port);
-	return (cs_inw(sc, DATA_PORT));
-}
-static __inline void
-cs_writereg(struct cs_softc *sc, uint16_t port, uint16_t val)
-{
-	cs_outw(sc, ADD_PORT, port);
-	cs_outw(sc, DATA_PORT, val);
-}
-
-static __inline void
-reset_chip(struct cs_softc *sc)
-{
-	cs_writereg(sc, PP_SelfCTL,
-	    cs_readreg(sc, PP_SelfCTL) | POWER_ON_RESET);
-}
-
-#define cs_duplex_full(sc) \
-        (cs_writereg(sc, PP_AutoNegCTL, FORCE_FDX))
-
-#define cs_duplex_half(sc) \
-        (cs_writereg(sc, PP_AutoNegCTL, NLP_ENABLE))
-
diff --git a/sys/dev/cs/if_csvar.h b/sys/dev/cs/if_csvar.h
deleted file mode 100644
index c49af45bb5ad..000000000000
--- a/sys/dev/cs/if_csvar.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
- *
- * Copyright (c) 1999 M. Warner Losh <imp@village.org> 
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * $FreeBSD$
- */
-
-#ifndef _IF_CSVAR_H
-#define _IF_CSVAR_H
-
-/*
- * cs_softc: per line info and status
- */
-struct cs_softc {
-	/* Ethernet common code */
-	struct ifnet *ifp;
-	device_t dev;
-
-	/* Configuration words from EEPROM */
-	int auto_neg_cnf;               /* AutoNegotitation configuration */
-	int adapter_cnf;                /* Adapter configuration */
-	int isa_config;                 /* ISA configuration */
-	int chip_type;			/* Type of chip */
-
-	u_char	enaddr[ETHER_ADDR_LEN];
-
-	struct ifmedia media;		/* Media information */
-
-	int     port_rid;		/* resource id for port range */
-	struct resource* port_res;	/* resource for port range */
-	int     irq_rid;		/* resource id for irq */
-	struct resource* irq_res;	/* resource for irq */
-	void*   irq_handle;		/* handle for irq handler */
-
-	int	flags;
-#define	CS_NO_IRQ	0x1
-	int	send_cmd;
-	int	line_ctl;		/* */
-	int	send_underrun;
-	void	*recv_ring;
-
-	unsigned char *buffer;
-	int buf_len;
-	struct mtx lock;
-	struct callout timer;
-	int	tx_timeout;
-};
-
-#define	CS_LOCK(sc)		mtx_lock(&(sc)->lock)
-#define	CS_UNLOCK(sc)		mtx_unlock(&(sc)->lock)
-#define	CS_ASSERT_LOCKED(sc)	mtx_assert(&(sc)->lock, MA_OWNED)
-
-int	cs_alloc_port(device_t dev, int rid, int size);
-int	cs_alloc_irq(device_t dev, int rid);
-int	cs_attach(device_t dev);
-int	cs_cs89x0_probe(device_t dev);
-int	cs_detach(device_t dev);
-void	cs_release_resources(device_t dev);
-
-#endif /* _IF_CSVAR_H */
diff --git a/sys/i386/conf/GENERIC b/sys/i386/conf/GENERIC
index cc9da10f008c..beb044ef61e7 100644
--- a/sys/i386/conf/GENERIC
+++ b/sys/i386/conf/GENERIC
@@ -272,7 +272,6 @@ device		wb			# Winbond W89C840F
 device		xl			# 3Com 3c90x (``Boomerang'', ``Cyclone'')
 
 # ISA Ethernet NICs.  pccard NICs included.
-device		cs			# Crystal Semiconductor CS89x0 NIC
 # 'device ed' requires 'device miibus'
 device		ed			# NE[12]000, SMC Ultra, 3c503, DS8390 cards
 device		ex			# Intel EtherExpress Pro/10 and Pro/10+
diff --git a/sys/i386/conf/NOTES b/sys/i386/conf/NOTES
index 8d4e3a954c40..db2795b6828b 100644
--- a/sys/i386/conf/NOTES
+++ b/sys/i386/conf/NOTES
@@ -502,7 +502,6 @@ device		cpufreq
 #       V.35/RS-232/RS-530/RS-449/X.21/G.703/E1/E3/T3/STS-1
 #       serial adaptor (requires sppp (default), or NETGRAPH if
 #       NETGRAPH_CRONYX is configured)
-# cs:   IBM Etherjet and other Crystal Semi CS89x0-based adapters
 # ctau: Cronyx Tau sync dual port V.35/RS-232/RS-530/RS-449/X.21/G.703/E1
 #       serial adaptor (requires sppp (default), or NETGRAPH if
 #       NETGRAPH_CRONYX is configured)
@@ -529,7 +528,6 @@ device		cpufreq
 device          bxe             # Broadcom NetXtreme II BCM5771X/BCM578XX 10GbE
 device		ce
 device		cp
-device		cs		# Crystal Semiconductor CS89x0 NIC
 hint.cs.0.at="isa"
 hint.cs.0.port="0x300"
 device		ctau
diff --git a/sys/modules/Makefile b/sys/modules/Makefile
index b545b66d40fd..0ae9c6266b17 100644
--- a/sys/modules/Makefile
+++ b/sys/modules/Makefile
@@ -98,7 +98,6 @@ SUBDIR=	\
 	${_cpufreq} \
 	${_crypto} \
 	${_cryptodev} \
-	${_cs} \
 	${_ctau} \
 	ctl \
 	${_cxgb} \
@@ -600,7 +599,6 @@ _cardbus=	cardbus
 _cbb=		cbb
 _cpuctl=	cpuctl
 _cpufreq=	cpufreq
-_cs=		cs
 _dpms=		dpms
 _ed=		ed
 _em=		em
diff --git a/sys/modules/cs/Makefile b/sys/modules/cs/Makefile
deleted file mode 100644
index d457128a57e7..000000000000
--- a/sys/modules/cs/Makefile
+++ /dev/null
@@ -1,9 +0,0 @@
-# $FreeBSD$
-
-.PATH: ${SRCTOP}/sys/dev/cs
-
-KMOD=	if_cs
-SRCS=	if_cs.c if_cs_isa.c if_cs_pccard.c
-SRCS+=	bus_if.h card_if.h device_if.h isa_if.h pccarddevs.h
-
-.include <bsd.kmod.mk>